A scatter plot was created to show the relationship between the number of staff members and students at various schools. The scatter plot's trend line has an equation of y = 0.1x + 18, where y is the total number of staff members and x is the total number of students.
Use the equation to predict the number of students in a school with 120 staff members.
(pick an answer)
1,038 students
1,020 students
890 students
To predict the number of students in a school with 120 staff members using the equation y = 0.1x + 18, we first substitute x = 120 into the equation:
y = 0.1(120) + 18
y = 12 + 18
y = 30
So, a school with 120 staff members is predicted to have 30 students.
Therefore, the correct answer is:
890 students